紫外光固化光纤油墨对着色光纤光衰减的影响

The Influence of Ink on Attenuation of UV-curable Colored Optical Fibe

考察了紫外光固化光纤油墨及其组分对着色光纤光衰减的影响。结果表明 ,在油墨的组分中 ,树脂对着色光纤的光衰减有重大影响 ,活性稀释剂次之 ,颜料几乎无影响。在油墨中其它成分固定 ,只改变树脂的种类 ,附加光衰减由大向小 ,有以下顺序 ,环氧丙烯酸酯 >芳香族聚氨酯丙烯酸酯 >脂肪族聚氨酯丙烯酸酯 >聚酯丙烯酸酯。附加光衰减的大小与油墨着色时的线速度也有关系。以上所有影响均与固化油墨的伸长和模量有内在的联系 ,模量大使着色光纤产生较大应力 ,增加了辐射损耗 ,从而增大了附加光衰减。

The influence of UV-curable ink on attenuation of colored optical fiber has been examined. The components in the ink affected the attenuation of colored optical fiber in the order of resin>active diluent>dye. The attenuation increment of colored optical fiber was in the following sequence:bisphenol epoxy diacrylate>aromatic urethane diacrylate>aliphatic urethane diacrylate>polyester diacrylate with the other components in ink kept constant. The attenuation increment of colored optical fiber decreases with the increase of line-velocity of coloration of optical fiber. All these effects were found related with the modulus of cured resin system of ink. The greater the modules, shows the greater attenuation increment of colored optical fiber. The cured ink with greater modules probably provides for the colored fiber a greater stress, increase radiation loss, therefore, enhanced attenuation increment.